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Woke up to banging kettling bolier...

Discussion in 'Plumbing and Central Heating' started by ahdguy, 1 Nov 2011.

  1. ahdguy

    ahdguy

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    So....

    Woke up in the early hours to the sound of loud-banging from the bolier... Checked the control panel, and there was neither demand for hot-water or heating...

    So switched the boiler off and went back to bed.

    Testing before I came to work, I noticed that the thermostat would fire the boiler, without the control panel switched on for heating, and due to the banging I guessed the heating valve was still shut.

    - So what is the likely-hood of the heating valve microswitch being stuck permanently on, resulting in the thermostat switching the boiler on, but the valve being shut?


    Thanks in advance!
     
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  3. breadnbutter

    breadnbutter

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    on S plan 2xport valve if both shut,and microswitch stuck yes ,it will bang the boiler. usually draytons stick often
     
  4. ahdguy

    ahdguy

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    Thanks - I'll get some replacements ordered and see what happens.. In the mean time I've taken the actuator off and left valve open
     
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